It is the things that may go unnoticed, the little things that sometimes reveal whether a leader is a true servant leader of Christ.
Those little things are being kind and polite to all, opening the door and finding a chair for others, making sure that others are served, saying "thank you," and "sorry," listening to other opinions, practicing simple humility, and not insisting on being first and respect for their position.
One CEO, interviewing people for his ministry, always took them to lunch to check their manners; to see if they passed the salt, made sure others were cared for before they ate, and were polite and considerate to the servers (waitress, etc.).
Biblical Leadership: Jesus came to serve others, not to be served!